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/**
 * Copyright (C) 2009 STMicroelectronics
 *
 * This file is part of "Mind Compiler" is free software: you can redistribute 
 * it and/or modify it under the terms of the GNU Lesser General Public License 
 * as published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT 
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see .
 *
 * Contact: [email protected]
 *
 * Authors: Matthieu Leclercq
 * Contributors: 
 */

package org.objectweb.fractal.mind.st;

import java.io.File;

import org.antlr.stringtemplate.AttributeRenderer;

public class BackendFormatRenderer implements AttributeRenderer {

  public static final String TO_UPPER             = "toUpper";
  public static final String TO_C_NAME            = "toCName";
  public static final String TO_UPPER_C_NAME      = "toUpperCName";
  public static final String NAME_TO_PATH         = "nameToPath";
  public static final String PATH_TO_C_NAME       = "pathToCName";
  public static final String PATH_TO_UPPER_C_NAME = "pathToUpperCName";
  public static final String SOURCE_TO_LINE       = "sourceTo#line";

  public String toString(final Object o) {
    return o.toString();
  }

  public String toString(final Object o, final String formatName) {
    if (TO_UPPER.equals(formatName)) {
      return o.toString().toUpperCase();
    } else if (TO_C_NAME.equals(formatName)) {
      return o.toString().replace('.', '_');
    } else if (TO_UPPER_C_NAME.equals(formatName)) {
      return o.toString().replace('.', '_').toUpperCase();
    } else if (NAME_TO_PATH.equals(formatName)) {
      return o.toString().replace('.', File.separatorChar);
    } else if (PATH_TO_C_NAME.equals(formatName)) {
      return o.toString().replace('/', '_').replace('.', '_');
    } else if (PATH_TO_UPPER_C_NAME.equals(formatName)) {
      return o.toString().replace('/', '_').replace('.', '_').toUpperCase();
    } else if (SOURCE_TO_LINE.equals(formatName)) {
      final String source = o.toString();
      final int i = source.lastIndexOf(':');
      if (i == -1) return "";
      final String inputFilePath = source.substring(0, i);
      final int j = source.indexOf('-', i);
      int lineNumber;
      if (j == -1) {
        try {
          lineNumber = Integer.parseInt(source.substring(i + 1));
        } catch (final NumberFormatException e) {
          return "";
        }
      } else {
        try {
          lineNumber = Integer.parseInt(source.substring(i + 1, j));
        } catch (final NumberFormatException e) {
          return "";
        }
      }
      return "#line " + lineNumber + " \"" + inputFilePath + "\"";
    }
    return o.toString();
  }

}